And while Nick did not have the right song, he can laugh about it all now, especially because of that South Park episode about his purity ring in 2009.

"There was so much attention on my sex life at 15. It was uncomfortable. If you were talking about a 15-year-old's sex life or a 17-year-old's in any other context it would be totally obscene," he told the mag. "I wasn't able to enjoy [the episode] when it came out. [Laughs.] But now I think it's hilarious."

Nick and his brothers wore purity rings at the start of their careers and vowed not to have premarital sex. Flashback to 2009 to see when the Jonas Brothers took over the ET stage and were still wearing their purity rings.